Help me do this plz

see below

Step-by-step explanation:

4a)  x / 12 = 5

    multiply both sides of equality by 12

    x = 60

4b) Dan charges $12 per hour, this doesn't change so it's the constant of proportionality.

4c) S = 12h

  If you substitute the h with the number of hours worked multiply with the  constant of proportionality 12 you'll get the amount charge S.

5) Equation for a slope is (y₂ - y₁) / (x₂ - x₁):

         (2 - 0) / (6 - 1)

         = 2/5

37

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560